To optimize the shape of rotor blades in a twin-entry turbocharger using SolidWorks Flow Simulation, follow these steps:

1. Initial Blade Design:

• Start by creating a 3D model of the rotor blades using SolidWorks. Ensure that the geometry includes important features like the blade shape, inlet, outlet, and mounting points.

2. Defining Parameters for Optimization:

• Identify key parameters that influence rotor performance, such as:Blade angle (twist and tilt). Blade length (tip radius). Curvature of the blade profile. Number of blades.
• These parameters will be controlled during parametric studies.

3. Set Up Flow Simulation:

• Set up a Flow Simulation study by defining:Fluid properties (e.g., air or exhaust gases). Boundary conditions (e.g., inlet velocity, pressure, and temperature). Rotational motion of the rotor (using the rotating reference frame for the rotating blade).
• Ensure that the turbine and compressor inlet flows are modeled to simulate the twin-entry flow conditions.

4. Use Parametric Studies:

• In SolidWorks, use Design Study or Parametric Study tools within Flow Simulation:Define Variables: Set up variables for the parameters that you want to optimize, such as blade angle or radius. Create a Parametric Study: Define ranges for the variables and specify the step size for each iteration. Optimize Parameters: Evaluate different configurations by running multiple simulations and comparing performance metrics like efficiency, pressure ratio, and velocity distribution.

5. Analyze Results:

• Use Flow Simulation to generate results for each iteration, focusing on the key performance indicators (KPIs) such as:Pressure drop. Efficiency and flow uniformity. Temperature and velocity distribution.
• Visualize the flow field using streamlines, velocity vectors, and pressure contours around the rotor blades.

6. Refining the Blade Shape:

• Based on the simulation results, refine the geometry of the blades. For instance, if certain angles or lengths yield better performance, adjust the model accordingly.
• Incorporate aerodynamic design principles like maximizing the angle of attack or reducing flow separation to optimize the rotor performance.

7. Optimization:

• Once you've run multiple iterations, analyze the results to identify the optimal blade shape. You may want to refine your shape further using optimization tools or a more advanced CFD solver if needed.

8. Validate the Design:

• After optimizing the blade shape, validate the design with more detailed simulations or physical testing if possible, as turbocharger performance depends on complex fluid-structure interactions.

This approach will help you design rotor blades that are optimized for maximum efficiency and performance in a twin-entry turbocharger.